<?php
class Lesson_model extends CI_Model {
    public function __construct(){
        parent::__construct();
        $this->load->database();
    }
    public function getLessons(){

    }
    public function listAllLessons(){

    }
    
    public function getLesson(){

    }
    
    public function saveLesson(){

    }
    
    public function removeLesson(){

    }

}